DATA ASSIMILATION FOR THE STUDY OF MAGNETOSPHERE-IONOSPHERE-ATMOSPHERE COUPLING
Lead Research Organisation:
University of Bath
Department Name: Electronic and Electrical Engineering
Abstract
State-of-the-art ionospheric imaging techniques use Global Positioning System (GPS) satellite data. In a similar manner to medical imaging, where the patient is examined by X-rays, in ionospheric imaging the upper atmosphere (ionosphere) is examined by radio waves. The next big step for ionospheric imaging is to combine it with models of the ionosphere. The reason to do this is to discover the underlying physics, which we cannot do very well by just looking at the images. We need to link the images to models of winds, solar radiation and electric fields in order to understand what causes the upper atmospheric environment to behave as it does during extreme events called storms. These are not the weather storms we are familiar with but rather these space-weather storms are caused by the bombardment of the outer realms of the atmosphere with particles and radiation from the Sun. The mathematics we need to link the measurements to the models is called data assimilation. Data assimilation has already been strikingly successful in meteorology. The data assimilation to be developed under this grant is for much higher up in the atmosphere (above 100 km) and will be used to investigate the coupling between the neutral and ionized atmosphere and to determine the relationships between ionosphere-atmosphere dynamics and magnetosphere dynamics.
Publications
Adewale A
(2012)
A study of L-band scintillations and total electron content at an equatorial station, Lagos, Nigeria REVIEW
in Radio Science
Alfonsi L
(2009)
Corrigendum to: "Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009)"
in Journal of Atmospheric and Solar-Terrestrial Physics
Alfonsi L
(2011)
GPS scintillation and TEC gradients at equatorial latitudes in April 2006
in Advances in Space Research
Alfonsi L
(2011)
Bipolar climatology of GPS ionospheric scintillation at solar minimum BIPOLAR CLIMATOLOGY OF SCINTILLATION
in Radio Science
Alfonsi L
(2008)
Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009)
in Journal of Atmospheric and Solar-Terrestrial Physics
Alfonsi L
(2018)
Analysis of the Regional Ionosphere at Low Latitudes in Support of the Biomass ESA Mission
in IEEE Transactions on Geoscience and Remote Sensing
Allain D
(2008)
Ionospheric delay corrections for single-frequency GPS receivers over Europe using tomographic mapping
in GPS Solutions
Baumgardner J
(2013)
Imaging space weather over Europe IMAGING SPACE WEATHER OVER EUROPE
in Space Weather
Benton C
(2012)
New method for tracking the movement of ionospheric plasma TRACKING IONOSPHERIC PLASMA MOVEMENT
in Journal of Geophysical Research: Space Physics
Benton C
(2014)
Method to measure the Stokes parameters of GPS signals STOKES PARAMETERS OF GPS SIGNALS
in Radio Science
Benton C
(2013)
Further observations of GPS satellite oscillator anomalies mimicking ionospheric phase scintillation
in GPS Solutions
Burston R
(2009)
Correlation between scintillation indices and gradient drift wave amplitudes in the northern polar ionosphere SCINTILLATION INDICES/GDI CORRELATIONS
in Journal of Geophysical Research: Space Physics
Burston R
(2010)
Turbulent times in the northern polar ionosphere? TURBULENT TIMES IN NORTHERN POLAR IONOSPHERE?
in Journal of Geophysical Research: Space Physics
Burston R
(2016)
Polar cap plasma patch primary linear instability growth rates compared
in Journal of Geophysical Research: Space Physics
Bust G
(2008)
History, current state, and future directions of ionospheric imaging
in Reviews of Geophysics
Bust G
(2007)
Four-dimensional GPS imaging of space weather storms FOUR-DIMENSIONAL GPS IMAGING
in Space Weather
Chartier A
(2016)
Ionospheric data assimilation and forecasting during storms
in Journal of Geophysical Research: Space Physics
Chartier A
(2014)
Ionospheric imaging in Africa IONOSPHERIC IMAGING IN AFRICA
in Radio Science
Chartier A
(2012)
The use of ionosondes in GPS ionospheric tomography at low latitudes IONOSONDES IN GPS TOMOGRAPHY
in Journal of Geophysical Research: Space Physics
Chartier A
(2012)
A 12year comparison of MIDAS and IRI 2007 ionospheric Total Electron Content
in Advances in Space Research
Chartier A
(2013)
A comparison of the effects of initializing different thermosphere-ionosphere model fields on storm time plasma density forecasts IONOSPHERIC FORECASTING
in Journal of Geophysical Research: Space Physics
Chartier A
(2018)
Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm
in Journal of Geophysical Research: Space Physics
Cooper C
(2019)
Measurement of Ionospheric Total Electron Content Using Single-Frequency Geostationary Satellite Observations
in Radio Science